Improvement in apparatus for tempering umbrella-ribs, steel strips



A.' wlLsoNg Apparatus for Temperi'ng UmbrellaRi/bs', Steel Strips, &c.5

No. 136,197, C Patentedreb.z5,1a73f y hwg/QM UNITED STATES PATENTOFFICE.

ARTHUR vWILSON, OF BIRMINGHAM, ENGLAND, ASSIGNOR TO JAMES OONA= WAY ANDJOHN LOCKEN, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT lN APPARATUS FOR TEMPERING UMBRELLA-RIBS, STEEL STRIPS. &c.

Specication forming part of Letters Patent No. 136,197, dated February25, 1873.

To all whom it may concern:

Be it known that I, ARTHUR WILSON, of Birmingham, England, have inventedan Improvement in the Process and Machine for Tempering andStraightening Steel Strips, of which the following is a specification:

The object of my invention is to temper and straighten strips of steelto be used in the frames of umbrellas and for similar purposes.

The accompanying drawing illustrates my invention.

y A is a slab or table, suitably supported upon which rest the metallicrings B B, in which are inserted a series of wires, G O. D is a griddle,composed of convex metallic bars and traversed by the rings B B,carrying the wires C O that are heated to the requisite degree. E is ahandle, which enables the operator to propel the griddle backward andforward.

The operation ot' my invention is as follows: Steel strips are put inwith the heated Wires C C and enter the rings B B 5 then the griddle `Dis superimposed on the combined mass of steel strips and heated Wires,and Athe rings B B protrude through the interstices of the bars of thegriddle D, which is moved to and fro by the operator for the purpose ofcommingling the steel strips with the heated Wires to communicate to thestrips a sufficient degree of heat, so that the griddle D may, by itsreciprocating action, simultaneously straighten and temper the steelstrips. These strips are covered with oil before they are put in withthe heated Wires, and the oil is ignited by Heretofore umbrellamanufacturers in this country have been compelled to import the ribs andstretchers for their frames, as they were unable to produce them at acost that would enable them to compete with the foreign makers.l Myinvention, however, Will so reduce the cost ot' production as to enablethe American manufacturers to make theirown ribs and stretchers andrender them independent of foreign manufacture, thus materiallypromoting Americanindustry and giving employment to domestic labor.

I claim as my invention- 1. The process of tempering and straighteningsteel strips, in the manner and for the purposes substantially asdescribed.

2. The combination of the slab or table A,

the rings B B, the Wires G C, the griddle I),

and the handle E, or their equivalents, arranged, constructed, andoperating in the manner and t'or the purpose substantially as ARTHURWILSON.

" described.

Witnesses:

FRANKLIN E. FELTON, SAML. N. SMALL.

